Showing posts with label destination control. Show all posts
Showing posts with label destination control. Show all posts

Tuesday, 14 July 2015

Industry Pioneers: Dr. Joris Schroeder and the Miconic 10




Little is known of Dr. Joris Schroeder’s early life and upbringing and no details emerged after exhaustive searches on the most popular search engines. What is clear is that Dr. Joris Schroeder had a huge impact on the vertical transportation industry particularly with regard to one specific invention but we will return to that later. He also impressed Peter Boardman on the subject in terms of its relevance to the future of lift control systems.

Career


There are more details available regarding his career. He was a graduate of Stuttgart Technical University and received a Ph.D. from the Berlin Technical University. He achieved the position of Vice President of Corporate Engineering and then Vice President of Product Research with Otis in Germany and then also in New York, USA.  In 1977 he left Otis and joined Schindler in Switzerland as a member of their Corporate Executive Committee and his remit included: engineering, production, construction and service. He passed away in the early 1990’s.

His Body of Work

During his career Dr. Joris published a number of industry leading articles and white papers including The Energy Consumption of Elevators published in 1980. If you read the piece it’s easy to appreciate that he laid the foundation for what was to come later. In 1985 he first wrote about ‘Destination Dispatching’ in the July edition of Elevator World and he followed this up in 1990 with the publication of an article in the March 1990 issue of Elevator World entitled "Advanced Dispatching" ("the Schroeder Article").

Why is Dr. Joris Schroeder so Significant?

Dr. Joris Schroeder’s contribution to the vertical transportation industry was more than theoretical, though. In 1990 he was granted a patent for the Miconic 10 along with Dr. Paul Friedli (also from Schindler). Using microprocessors Schroeder created Schindler’s Destination Dispatch system – what we now call Destination Control. The first building to install the Miconic 10 system was the Hamburg Electric Company in Germany in 1990. The first installation in the USA was in 1993 at the Ameritech building in Indianapolis.  As architects, building contractors and the public came to understand these new ‘smart button-less’ elevators their popularity grew. Energy efficiency was also 30% better with the new Destination Control elevators. Schindler, under Dr. Friedli’s guidance have progressed with the development of M10, now known as their Port system which has the ability to interface with other building elements, i.e. speed-gates and door locking systems.

All lift companies now have Destination Control systems so this idea can be seen as transformational. D&B have been specifying these systems enthusiastically for years and as a Consultancy can be considered to be leading the way.

To read more about the benefits of Destination Control click here
For details of our Destination Control experience click here

Dunbar and Boardman is the lift, escalator and access equipment consultancy. Are you currently planning a project that will involve Destination Control? We would be happy to discuss with you. Give us a call on T +44 (0)20 7739 5093 or send us an email via peterboardman@dunbarboardman.com to start the conversation. We look forward to hearing from you. 

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Thursday, 30 April 2015

What Does Destination Control look like in practice? 2 Examples

https://www.dropbox.com/s/ghjfvbw7tmxdrbp/Korea%20Proj%20After%20Mod.wmv?dl=0

Regular readers of our blog will remember this post, What are the benefits of Destination Control? In this week’s post we have provided two examples of Destination Control one in the form of ‘before and after’ videos and the other in the form of a statistical comparison for a lift traffic simulation of a theoretical building with 10 floors above ground and served by a group of 5 lifts.

Please watch this video. The video is a great example of the impact a Destination Control system can have on passenger traffic.


Lift traffic analysis comparison of Destination Control with Conventional Collective Control.

The two sets of results on the PDF above are for a lift traffic simulation of a theoretical building with 10 floors above ground and served by a group of 5 lifts.

The first page of each set of results details the input data used and it can be seen that in both the values used are identical except for the passenger loading and unloading time.  These have been reduced in the Destination Control simulation to account for the fact that typically people waiting in the lobby will gather outside their assigned lift rather than waiting in the middle of the lobby with conventional control and when stopping on an upper floor a number of people will exit together.

The Passenger Demand graph shows the passenger demand profile and is the same as the classic office up-peak template described in CIBSE Guide D with a peak demand of 15%.

The key results graphs are the “Queue Length”, “Car Loading” and “Average Wait and Time to Destination".

The Queue Length graph shows that during the 5 minute period with peak passenger demand the queue length likely to be experienced with a Destination Control system would be significantly less than with a Conventional Collective Control system which is operating on the point of saturation.

The Car Loading graphs highlight that the Destination Control system manages the passengers in a more efficient manner thereby reducing the maximum number of people in each lift during the peak compared with the Conventional Collective Control where the lift cars fill to the maximum allowed.

The Average Wait and Time to Destination graphs show that for this example the use of Destination Control would result in an average wait and time to destination approximately half of that which could be achieved with Conventional Collective Control.

In summary, Destination Control lifts have the capacity to move more people in a given time period than those with Conventional Collective Control though in some situations the average waiting time may increase.


Dunbar and Boardman is the lift, escalator and access equipment consultancy. Are you currently planning a project that will involve Destination Control? We would be happy to discuss with you. Give us a call on T +44 (0)20 7739 5093 or send us an email via peterboardman@dunbarboardman.com to start the conversation.

Wednesday, 21 May 2014

What are the benefits of Destination Control?

We have all been into a building where there seems to be an excessively long wait for an elevator at the lobby. Most likely the building in question is not utilising a Destination Control system. Destination Control is a traffic management system for lift passengers that groups passengers and their destinations and then selects the most efficient lift car for their journey.  Destination Control can be installed in new buildings and significantly can also be applied to existing buildings too. The key benefits of installing a Destination Control system are listed below.
 
1. Waiting times are reduced. 
Waiting times can be reduced and the passenger experience improved. Crowded lobbies with passengers speculating on the arrival time of the next lift car can become a thing of the past.

2. Quicker journeys
People travelling to similar destinations share a lift and this results in quicker journeys across the board.  Your journey to the 18th floor is no longer delayed by passengers travelling only one or two floors, for example.

3.  Fewer stops
Intelligent grouping of the destinations means that each elevator journey will have fewer stops than a random approach would have and therefore the lift car can return to the ground floor or another floor if a shuttle system is being deployed.

4. Easy to operate
A Destination Control System is very easy to operate via a keypad in the lobby.

5. Can reduce the need for lift shafts by 25% 
Installing a Destination Control System can reduce the need for lift shafts by 25% in some cases. This could represent a huge financial saving for developers of new buildings and is a very good reason why lift specialists should be involved in the initial stages of commercial building design.

6. Energy Efficiency
Smarter use of elevators via a Destination Control system can result in greater energy efficiency in some cases. There will be more time when the lifts are not being used.

Dunbar & Boardman has extensive experience of Destination Control projects as you can see by clicking here

Would you like to install Destination Control in your building? Are you working on a project that would benefit from Destination Control? Please give us a call on T +44 (0)20 7739 5093 to discuss or send us an email via garyavis@dunbarboardman.com to start the conversation. We look forward to hearing from you.